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Rarey, J. and Gmehling, J. (2009) Factual Data Banks and Their Application to the Synthesis and Design of Chemical Processes and the Development and Test of Physical Property Estimation Methods. Pure and Applied Chemistry, 81.

has been cited by the following article:

• TITLE: Thermodynamics of Phase Transitions for Pure Substances and Mixtures

  AUTHORS: Jan Helm

  KEYWORDS: Gibbs Free Energy, Helmholtz Free Energy, Enthalpy, Equation-of-State, Phase Transition, Van-Der-Waals Equation-of-State, Peng-Robinson Equation-of-State, Mie-Grueneisen Equation-of-State, Maxwell Rule, Saturation Curve, Binary Mixture

  JOURNAL NAME: Journal of Modern Physics, Vol.17 No.5, May 27, 2026

  ABSTRACT: This paper presents in a concise way the mathematical models and experimental data of phase transitions of pure substances and solutions with new ansatz and calculation methods. In chap. 2 and chap. 3 we deal with the theoretical basics of solutions and mixtures. In chap. 4, the theory of equations-of-state is formulated, and in chap. 5 the calculation results for four pure substances (benzene, ethanol, argon, carbon dioxide) are presented and commented. In chap. 6, the equation-of-state and mixing rules for mixtures are formulated, and the calculation results for an example solution (benzene-ethanol) are discussed and compared with measured values. The paper introduces two novel methods: 1) Exact algebraic solution for phase diagrams based on Peng-Robinson and Mie-Grueneisen equation-of-state; 2) A new ansatz for mixture phase diagrams based on the weighted sum of partial pressures.